Machine Tool Technology Quiz: Abrasives and Grinding Wheels - Prof. William K. Hemphill, Quizzes of Engineering

Download Machine Tool Technology Quiz: Abrasives and Grinding Wheels - Prof. William K. Hemphill and more Quizzes Engineering in PDF only on Docsity! Score ________/20 Name _______________________________ Section _________ Last name First name ENTC 2200 Machine Tool Technology—QUIZ #9: Abrasives/Grinding Directions: Circle or completely mark through the letter of the one most correct alternative 1. A grinding wheel used on a surface grinder is identified with the legend 32A46H8VBE. What kind of abrasive material is used? a. Silicon carbide b. Aluminum oxide c. Boron nitride d. Silicon dioxide 2. Which character in the preceding grinding wheel designation specifies the bond type? a. A b. 46 c. H d. 8 e. V f. 32 3. Which type of bond is specified in the preceding grinding wheel designation? a. Alphanumeric b. Vitrified c. Holographic d. Beta cubic boron nitride e. No. 8 gage 4. Which character in the preceding grinding wheel designation specifies the "openness" of the structure? a. 3 b. 2 c. 4 d. 6 e. 8 5. Which character in the preceding grinding wheel designation specifies the relative hardness of the bond? a. 32 b. A46 c. 8 D. H e. VBE 6. Which character in the preceding grinding wheel designation specifies the abrasive grit size? a. 3 b. 4 c. 6 d. 8 e. 32 f. 46 7. Sharpening of tungsten carbide tool bits and drills requires a grinding wheel composed of: a. Aluminum oxide or garnet b. Silicon dioxide. c. Ferrite d. Silicon carbide or diamond e. Iron oxide or emery f. Nitrous oxide 8. Striking a grinding wheel with a plastic screwdriver handle will determine: a. Whether or not the wheel is cracked. b. What kind of abrasive material the wheel contains. c. If the wheel is suitable for grinding non-ferrous metals. d. Whether or not the wheel needs to be dressed. 9. Abrasive grains cemented to flexible backing materials are called: a. Synthetic abrasives b. Flexible abrasives c. Coated abrasives d. Cemented abrasives 10. The size of a horizontal spindle surface grinder is designated by its: a. Working area. b. Spindle diameter c. Grinding wheel width d. Grinding wheel diameter Revised: Nov. 6, 2004